Notably, the ability to set a default (and enable/disable) audio device. Inevitably, windows will decide to make HDMI/DP the default output. And the ability to change the gain on your mic: cheap mics are way too quiet in windows, especially in discord.
Yep plenty! You go to Network & internet > Related > More network adapter options and it might as well be Vista. Go to Mouse settings and want to turn off pointer precision or hide while typing? That's only in the Win32 panel. Plenty more. It's almost bizarre how much fwature parity wasn't a goal for UX and power users get the worst of both experience.